Unit 'V' led flashes Orange, then White, Vizio Logo appears on screen momentarily, then shuts down .
Main board?
Main board?
-
-
Re: Vizio XVT473SV Power On problem
This series is very tough. I have one same problem. Change main It run one day and do the same. -
Re: Vizio XVT473SV Power On problem
i HAVE ONE WITH NO +18V. NO +12V, ONLY HAS +5V ON PS. Help please. JohnComment
-
Re: Vizio XVT473SV Power On problem
Same TV model?
Please upload good clear pictures of the backside of the TV so we can see how all the boards are connected together.
Your problem sounds like the main board is not sending the PS-ON to turn on the rest of the power supply circuits.Never stop learning
Basic LCD TV and Monitor troubleshooting guides.
http://www.badcaps.net/forum/showthr...956#post305956
Voltage Regulator (LDO) testing:
http://www.badcaps.net/forum/showthr...999#post300999
Inverter testing using old CFL:
http://www.badcaps.net/forum/showthr...er+testing+cfl
Tear down pictures : Hit the ">" Show Albums and stories" on the left side
http://s807.photobucket.com/user/budm/library/
TV Factory reset codes listing:
http://www.badcaps.net/forum/showthread.php?t=24809Comment
-
Re: Vizio XVT473SV Power On problem
This main board XVT473SV, along with M470nv, m550nv and XVT553SV all seen to fail from bad firmware and HDMI chip going bad.
The HYNIX H27UAG8TMTR (2GB) which hold the firmware develop bad block over time and need to be reprogram to correct this bad data.Last edited by ecking767; 09-10-2015, 11:33 AM.Comment
-
Hi all:
I have a Vizio E60-E3 I am trying to troubleshoot a no power problem with. Thanks to the help on this board and elsewhere, I was pretty sure I had narrowed it to a power board problem. The board in question is a 09-60CAP0D0-00. Image attached for reference, but not of my board (tv is put away at the moment). FWIW, no obvious looking issues with the board.
I measured voltage at power in and on the fuse and saw 120V, so power is getting to the board.
On the pins out to the main board, I got no voltage at all on any of the pins. I assumed this... -
Vizio e601i-A3 - Has Sound and Display, But No Backlight - Bad Power Supply Board or Bad LED Bulbs ?I was given this TV from my great uncle. He said it just wouldn't turn on one day out of nowhere, replaced the TV, and gave it to me to possibly fix and use for myself.
Upon bringing it home and plugging it up, it showed a standby light.
I powered it on and without a flashlight, the display showed the "V" but the lighting is very dim, but visible.
The screen seems to blackout and stay black, but with a flashlight I can see the display.
With my Playstation 4 connected via HDMI, and running a game I can hear sound.
Assuming... -
I have an LG Plasma TV 60PM6700 for the past ~12 years.
In the last ~3-4 months I have been having some issues.- Problem: It started with random picture disappearing (sound still worked).
Frequency: Happened about once a week.
Solution: Had to turn off TV wait a few seconds before turning it on again. - Problem: Then it got worse and the TV started to shut down and when turning on the no picture just sound.
Frequency: Happened about once a week.
Solution: Had to turn off TV wait about 10-20 seconds and turn it on again to solve. - Problem: TV shuts down
- Problem: It started with random picture disappearing (sound still worked).
-
When I reflash again the bios of hoaca388 the unit powers on and the unit lives!!! Hooray!! All voltage in the coil 3.3v, 5v and 6.7v indicate charging are all present. including the cpu voltage , EEPROM and GPU voltage the unit is now alive, normal screen booting to windows and log in screen until I power it off. Then the unit never goes on even when pressing the power button in the keyboard.. Voltage reading 19v main , 3.3v VCC in IT8225E-128 and EEPROM VCC 0 volt and the charging voltage 0 volt.
Try to trace the power switch button goin to the power switch IC PU8803 (APL3533AQBI-TRG)... -
Hello, trying to fix C9 55 inch. I have pulled the back and all looks completely normal with nothing burnt so far. This is first time attempting to fix a tv so any help is appreciated.
Problem. I hit power button, red light on TV turns off and tries to turn on, no picture shows up and then shuts off. This occurred after house power turned on and off, not from a storm.
I have tested the power going from power supply to main board, all 12v and 20 volt readings are proper when I hit power button.
The power supply to t con is different story.
This...
Comment